Humerus internal safe locking nail

ABSTRACT

Invention is related to the nails used in the surgical treatment of humeral fractures. And it is characterized with, humerus internal safe locking nail (1) which is including; Locking pin (2) providing distal locking by outgoing from the distal hole of the nail (8) in pursuit of being screwed inside all along from the proximal of the humerus internal safe locking nail (1) At least one locking sending slot (3) on the locking pin (2) providing locking pin (2) to be sent to lock from the distal part At least one locking pin slot of the nail (5) on the proximal part of the humerus internal safe locking nail (1) providing locking pin (2) to proceed into humerus internal safe locking nail (1). At least one Threaded proximal part of the locking pin (11) on the locking pin (2) At least one threaded end of the locking pin (7) locking by outgoing from the distal hole of the nail on the locking pin (2) At least one Bone entering tip of the locking pin (9) providing locking by entering to the bone angularly on the threaded end of the locking pin (7) Anatomically angled tip on the distal part of the nail (10) in the form of curved and straight comprised on the distal part of the humerus internal safe locking nail (1). humerus internal safe locking nail (1) is characterized with humerus internal safe locking nail (1) including rotation preventive end structure of the nail (12) on the distal part.

TECHNICAL SCOPE

The current invention is about nails which are used in the surgicaltreatment of humerus fractures.

The invention is especially related with the new humerus internal safelocking nails that eliminate the experienced problems in the treatmentof humerus fractures.

COMMON STATUS OF THE TECHNIQUE

Humerus is located between scapula and olecranon and forms the bonestructure of the arm region. Humerus fractures can be broken by directimpact and by axial loading from elbow direction. Humeral (arm)fractures are commonly seen. One of every 20 fractures is an arm(humeral) fracture. Children forearm fractures are more frequently seenthen the arm fractures. Arm fractures are often seen in trafficaccidents or falling on to the hands in an accident.

Intramedullary nails can be used for the surgical treatment of humeralfractures.

The patient is exposed to lots of radiation when a guide or fluoroscopyis need for the distal locking.

In the present application for locking an extra skin incision is made atthe distal part of the humerus. The risk of infection is increased atthe extra cut applications.

A locking nail used in humeral fracture is mentioned in CN104323847numbered; A61B17/72 IPC coded China patent application. But it does notsolve the probable problems here, since it is necessary to make incisionin order to achieve locking at the distal part.

There is an increasing risk of infection, probable injuries of radialnerve, median nerve and musculocutaneous nerve at the part of distallocking and this causes extended healing time.

EXPLANATION OF THE PURPOSE OF INVENTION

According to the way of the technique the aim of the invention is todevelop a Humerus internal safe locking nail to eliminate thenegativities of existing structure that brings faster and more effectivesolutions to the humerus fracture treatment.

Another object of the invention is to lock from inside out withouthaving to cut the distal portion of the nail. In this way, all theproblems are avoid that may arise in the distal portion.

Another object of the invention is the shortening of the application andoperation time. In this way, an important contribution of the shorteningof the treatment period is provided.

Another object of the invention is the elimination of possible radialnerve, median nerve and musculocutaneous nerve injuries of the distallocking region.

Humerus internal safe locking nail that provides many advantages isdeveloped in order to achieve the mentioned objectives.

EXPLANATION OF THE FIGURES

FIG. 1; A representative application of the invention is a drawing.

FIG. 2; A representation of another application of the invention is adrawing.

DESCRIPTION OF THE REFERENCES

1 Humerus internal locking nail (Humerus insafelock Nail) 2 Locking pin3 Locking pin sending slot 4 Compression hole of the nail 5 Locking pinslot of the nail 6 Angled screw holes on the proximal of nail 7 Threadedend of the locking pin 8 distal hole of the nail 9 Bone entering tip ofthe locking pin 10 Anatomically angled tip on the distal part of thenail 11 Threaded proximal part of the locking pin 12 Rotation preventiveend structure of the nail 13 Upper part 14 Lower part 15 Screw holes onthe proximal of the nail

Detailed Disclosure of Invention

Invention, is about ulna internal safe locking nail (1), locking pin (2)is created that is mounted on the inside and allows locking at thedistal portion. It has at the upper part (13) a compression hole of thenail (4), locking pin slot of the nail (5), angled screw holes on theproximal of the nail (6). It is locking at the distal of the humerusbone by screwing the bone entering tip of the locking pin (9) on thethreaded end of the locking pin (7) which is coming out of the distalhole of the nail (8) at the lower part (14) moving with a screw driverfrom inside on the locking pin (2) over the locking pin sending slot(3). It has at the lower part (14) of the humerus internal safe lockingnail (1) a rotation preventive end structure of the nail (12), distalhole of the nail (8). It has between the rotation preventive endstructure of the nail (12) and the bone entering tip of the locking pin(9) on the humerus internal safe locking nail (1) the Anatomicallyangled tip on the distal part of the nail (10).

Humerus internal safe locking nail (1) can be used for proximal humerusand diaphyseal (shaft) humerus fractures.

The features that provide advantages than the other implants are asfollows:

The same humerus internal safe locking nails (1) can be used for leftand right humerus.

It can be placed till to the most distal location so that to be abovethe olecranon fossa at the distal humerus bone.

The use of fluoroscopy (x ray emiting device) or guide is not necessaryfor distal locking. In this way it reduces the adverse effects thatcould occur on the patient.

The distal locking is not done like the known classic systems which thescrew is going through the nails screw hole. The distal locking of thehumerus internal safe locking nail (1) is done by screwing from insideto outside. There is no skin incision for locking at the distal part ofhumerus. This situation gives aesthetic advantages. The absences of themuscle, tendon and fascia damages are the functionally importantadvantages.

The known radial nerve, median nerve and musculocutaneous nerve injurieswhich are seen at the distal locking of the classical system iseradicated.

Application time is short and the operation time is shortened.

The application method of the HUMERUS INTERNAL SAFE LOCKING NAIL (1):

After the reduction of the humerus fracture part (to get again theanatomic position of the bone) first of all the Humerus internal safelocking nail (1) is inserted from the appropriate entrance into themedullary channel. After passing through the fracture line is placed toits end position which is the most distal part end about 25 mm over theolecranon fossa.

Because the humerus internal safe locking nail (1) is a long nail, isplaced along the humerus canal.

While the humerus internal safe locking nail is placed, the Anatomicallyangled tip on the distal part of the nail (9) which is between 5°-40°and at the distal of the humerus internal safe locking nail (1) looks tothe anterior face of humerus (front face of humerus). The Anatomicallyangled tip on the distal part of the nail (10) and the humerus internalsafe locking nails (1) Rotation preventive end structure (12) providesan easy movement of the humerus internal safe locking nail (1) to thedistal in the medullary canal and prevents the rotational movement thatcan occur.

When the humerus internal safe locking nail (1) is placed into thechannel in this way, the second component which is the locking pin (2)is send inside the humerus internal safe locking nail (1) by using thelocking pin sending slot (3).

The bone entering tip of the locking nail (9) which is a sharp tip onthe locking pin that has the ability to enter the bone comes out fromthe distal hole of the nail (8) which is at the distal of humerusinternal safe locking nail (1) stuck angled preferably 20-60 mm abovethe distal end to be at the posterior (back) side into the bone andlocks by screwing. The threaded end of the locking pin (7) which is onthe locking pin (2) makes easier to stuck and goes forward.

The desired tight fixation at the distal part of the humerus bone isobtained by screwing and stucking the locking pin (2) which is comingout from the distal hole of the nail (8) at the distal of the humerusinternal safe locking nail (1) as to the posterior (back) direction andby pressing the anatomic angled tip of the distal part of the nail (10)which is between 5°-40° at the lower part (14) of the hu merus internalsafe locking nail (1) to the anterior (front) of the humerus.

After the threaded end of the locking pin (7) on the locking pin isstuck and screwed posteriorly to the distal of the humerus bone, thethreaded proximal part of the locking pin (11) is locked to the finalposition there because it matches to the locking pin slot (5) at theproximal of the humerus internal safe locking pin (1).

If there is a need to close the gap between the fracture line (need ofcompression) during the proximal locking stage following the distallocking a screw is passed through the compression hole (4) of thehumerus internal safe locking nail (1) and after that the gap betweenthe fracture line is compressed by sending the compression screw fromthe top of the humerus internal safe locking nail (1). If necessary orprimarily the 0-20° oblique angled screw hole at the proximal of thehumerus internal safe locking nail (1), the angled screw holes on theproximal of the nail (6) can be used.

There is a difference at the alternative structuring of the humerusinternal safe locking nail (1) which is at the upper part (13) on theproximal section of the nail. The followed way until finishing thedistal locking is the same as decribed above.

The difference here, as seen on the figure-2, on the proximal of thehumerus internal safe locking nail (1) is the 0-30° angled screw ho leson the proximal of the nail (15). The screws are send for proximallocking at an angle to each other from the screw holes on the proximalof the nail (15). Due to the location of the screw holes on the proximalof the nail (15) the need of an additional skin incision at the proximallocking is eliminated.

The placement of the screws are provided from the same cut on which theHumerus internal safe locking nail (1) is placed. In this way, softtisue like muscle, tendon, fascia damage are prevented. Loosening,migration (moving to different locations), irritation of the proximallocking screws are not seen. Functional and aesthetic advantages areobtained. This allows, just like the distal locking there is no need ofa guide and no need of a fluoroscope that emits X-ray during the usage.Because of the application time the operation time is shortened. Aftersurgery significant improvements of the patient's rehabilitation timeare obtained.

In a preferred application of the invention, the humerus internal safelocking nail (1) includes a locking pin (2) that is longitudinaly insidethe humerus internal safe locking nail (1) screwed from the proximalcoming out from the distal hole of the nail (8), at least one lockingpin sending slot (3) on the locking pin (2) providing the sending of thelocking pin (2) that is locking the distal part, at leat one locking pinslot of the nail (5) at the proximal part of the humerus internal safelocking nail (1) that is providing the advancing of the locking pin (2)inside the humerus internal safe locking nail (1), at least one threadedproximal part of the locking pin (11) on the locking pin (2), at leastone threaded end of the locking pin (7) that is locking by coming outfrom the nails distal hole (8) on the locking pin, at least one boneentering tip of the locking pin (9) that is locking by entering the boneat an angle, anatomically angled tip on the distal part of the nail (10)that is created in an angled and flatened structure at the distal partof the humerus internal safe locking nail (1), rotation preventive endstructure of the nail (12) at the distal part of the humerus internalsafe locking nail (1) has been established.

Locking pin sending slot (3) includes Bone entering tip of the lockingpin (9) which makes locking by screwing on the distal of humerus andalso on the threaded end of the locking pin (7) coming out from distalhole of the nail on the lower part (14) by proceeding on the slot withscrewdriver.

There is an anatomically angled tip on the distal part of the nail (10)curved to distal with straightened top in the form of 5°-40° angle,which eases to enter to the bone on the distal part of the humerusinternal safe locking nail (1) .

There are angled screw holes on the proximal of nail (6) with 0-20°angle on the upper part (13) of the humerus internal safe locking nail(humerus insafe lock nail) (1).

There are screw holes on the proximal of the nail (15) with 0-30° degreewhich provide screws to be sent angular to each other on the upper part(13).

Compression hole of the nail (4) is formed to provide locking andcompression of fracture part to the bone on the upper part (13).

There is locking pin slot of the nail (5) on the upper part (13) of thehumerus internal safe locking nail (1) which provides matched positionfor Threaded proximal part of the locking pin (11) with Threadedproximal part of the locking pin (11) on the locking pin (2).

It is including threaded end of the locking pin (7) on the locking pin(2) which provides to tighten the anterior side of humerus at the lowerpart (14) of humerus internal safe locking nail (1) and provides lockingpin (2) to stick into the bone from the inside out angularly by outgoingfrom distal hole of the nail at the lower part (14) of humerus internalsafe locking nail (1) and provides locking angularly.

There is Rotation preventive end structure of the nail (12) on theanatomically angled tip on the distal part of the nail (10) which easesto enter the bone on the distal part (14) of the humerus internal safelocking nail (1)

1-9. (canceled)
 10. A nail for use in the surgical treatment of humeralfractures, the nail comprising: a locking pin (2) providing distallocking by coming out from a distal hole of the nail (8) in pursuit ofbeing screwed inside all along from the proximal of the humerus internalsafe locking nail; at least one locking pin sending slot (3) on thelocking pin (2) in order to provide the locking pin (2) to be sent tolock from a distal part; at least one locking pin slot of the nail (5)on the proximal part of the humerus internal safe locking nail (1)providing locking pin (2) to proceed into the humerus internal safelocking nail (1); at least one threaded proximal part of the locking pin(11) on the locking pin (2); at least one threaded end of the lockingpin (7) locking by coming out from the distal hole of the nail on thelocking pin (2); at least one bone entering tip of the locking pin (9)providing locking by entering to the bone angularly on the threaded endof the locking pin (7); an anatomically angled tip on the distal part ofthe nail (10) in the form of curved and straight comprised on the distalpart of the humerus internal safe locking nail (1); wherein the humerusinternal safe locking nail (1) includes rotation preventive endstructure of the nail on the distal part.
 11. The nail of claim 10wherein the locking sending slot (3) includes a bone entering tip of thelocking pin (9) which makes locking by screwing on the distal ofhumerus, and also on the threaded end of the locking pin (7) coming outfrom distal hole of the nail (8) on the lower part (14) by proceeding onthe slot with screwdriver.
 12. The nail of claim 10 wherein theanatomically angled tip on the distal part of the nail (10) is curved todistal with straightened top in the form of 5°-40° angle, which eases toenter to the bone on the distal part of the humerus internal safelocking nail (1).
 13. The nail of claim 11 wherein the anatomicallyangled tip on the distal part of the nail (10) is curved to distal withstraightened top in the form of 5°-40° angle, which eases to enter tothe bone on the distal part of the humerus internal safe locking nail(1).
 14. The nail of claim 10 including angled screw holes on theproximal of the nail (6) with 0°-20° degree on an upper part (13) of thehumerus internal safe locking nail (1).
 15. The nail of claim 10including screw holes on the screw holes on the proximal of the nail(15) with 0°-300° degree which provide screws to be sent angular to eachother on the upper part (13).
 16. The nail of claim 10 including acompression hole of the nail (4) formed to provide locking andcompression of fracture part to the bone on the upper part (13).
 17. Thenail of claim 10 including locking pin slot of the nail (5) on the upperpart (13) of the humerus internal safe locking nail (1) which providesmatched position for threaded proximal part of the locking pin (11) withthreaded proximal part of the locking pin (11) on the locking pin (2).18. The nail of claim 10 including a threaded end of the locking pin (7)on the locking pin (2) which provides to tighten an anterior side of thehumerus at the lower part (14) of the humerus internal safe locking nail(1) and provides the locking pin (2) to stick into the bone from theinside out angularly by outgoing from the distal hole of the nail at thelower part (14) of the humerus internal safe locking nail (1) andprovides locking angularly.
 19. The nail of claim 10 including arotation preventive end structure of the nail(12) on the anatomicallyangled tip on the distal part of the nail (10) which eases to enter thebone on the lower part (14) of the humerus internal safe locking nail(1).